Strait of Hormuz traffic returns to normal by July 31?

Platform comparison

Market context

Commercial navigation through the Strait of Hormuz has been severely disrupted since late February 2026 due to US–Iran strikes, with traffic dropping to near-standstill levels despite a brief reopening in June. A US–Iran agreement finalized on 17 June 2026 guarantees immediate commencement of commercial shipping, and 25 vessels traversed the strait on 25 June—the highest volume since April—according to AXSMarine [1]. However, the strait remains officially closed as of late June, with commercial shipping suspended again after a short reopening [3]. Historical volatility in this corridor, where transits without AIS remain an extreme possibility and war-risk cover is expiring, frames why the crowd-implied probability of a return to normal (60+ daily calls) by 31 July 2026 sits at just 23% [2].

Traders should monitor the IMF PortWatch 7-day moving average of arrivals, the US Navy’s convoy coordination schedule, and any technical talks between Washington and Tehran, as these are the primary dependencies for sustained traffic [3]. Recent news from CNN confirms that 27–32 transits were recorded post-reopening, representing only 32% of pre-crisis normal levels, underscoring the fragility of the current recovery [3]. On platform mechanics, Polymarket displays decimal odds (e.g., 0.23 implied probability) with no KYC and lower fees, whereas Kalshi requires US residency and KYC, offers implied probability directly, and charges higher fees; Betfair and Smarkets use decimal odds with KYC and vary in fee structures, creating divergent liquidity and pricing for this specific geopolitical event.

The resolution hinges entirely on IMF PortWatch publishing data meeting the threshold, meaning ships not reported by the platform will not count, regardless of actual transit volumes [5]. Given that traffic has virtually stopped for weeks amid ongoing tensions and that missile threats persist, the 23% probability reflects a realistic assessment of the low likelihood of a sustained 60+ daily arrival rate by the settlement deadline [4][6].

Sources: 1 · 2 · 3 · 4 · 5

Methodology

We read Strait of Hormuz traffic returns to normal by July 31? from four platform perspectives: Polymarket (on-chain CLOB), Kalshi (CFTC-regulated exchange), Betfair Exchange (sports book exchange), Smarkets (peer-to-peer betting exchange). Polymarket's live mid is the canonical probability; the side-by-side columns benchmark fees, KYC, settlement currency and deposit rails so you can choose the venue that fits your jurisdiction and trade size.

Resolution & payout

Settlement is the biggest difference between the four platforms: Polymarket on-chain in USDC (instant), Kalshi USD via CFTC (T+1), Betfair and Smarkets in local currency via bank withdrawal (T+1 to T+3). On-chain settlement clears in minutes — the fastest payout path of the four.

FAQ

Polymarket vs Kalshi — which is better?

Depends on your location. Kalshi is CFTC-regulated, US-only with full KYC. Polymarket is global, on-chain, no KYC up to $1,500. Polymarket has ~10x higher liquidity but higher regulatory risk.

Which platform has the deepest liquidity?

Polymarket — by a wide margin. Top markets reach $50-500M volume, Kalshi ~$200M cumulative, Betfair similar. Deeper liquidity means your trade moves the quote less.

Which platform is accessible globally?

Polymarket is geo-blocked in the US/UK/EU. Kalshi is US-only. Betfair and Smarkets are UK-restricted. Polymarket Alternative has a different geo footprint and routes to Polymarket's order book at 0% fees.

Are all these platforms regulated?

No. Kalshi is CFTC-regulated (US). Betfair and Smarkets are UK Gambling Commission licensed. Polymarket operates without explicit regulation — a different risk profile than a regulated sportsbook.

Which platform supports Klarna/SOFORT?

Directly: none. Polymarket accepts only USDC on Polygon. Polymarket Alternative offers a fiat on-ramp via Klarna or SOFORT (DE/AT/CH) and converts internally to USDC for the Polymarket order book. T+1 processing.